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Kaur M, Kaur H, Kapila A, Reenu. Tautomerism, spectroscopic and computational analysis of Schiff base and its diphenyltin (IV) complex. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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2
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Single crystal, spectral and electronic transition studies on (E)-N-(3-methoxy-4-hydroxybenzylidene)-4-nitrobenzohydrazide monohydrate. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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3
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The synthesis and characterization of 1-(Allyl)-3-(2-methylbenzyl)benzimidazolium chloride: FT-IR, NMR, and DFT computational investigation. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.10.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Awad MK, Abdel-Aal MF, Atlam FM, Hekal HA. Molecular docking, molecular modeling, vibrational and biological studies of some new heterocyclic α-aminophosphonates. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:78-88. [PMID: 30081271 DOI: 10.1016/j.saa.2018.07.083] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 07/26/2018] [Accepted: 07/30/2018] [Indexed: 06/08/2023]
Abstract
A new diphenyl (aryl) (Ǹ-quinazolin-4-yl-hydrazino) methylphosphonates 3a-3d was synthesized via anhydrous zinc chloride catalyzed Kabachnic-Fields reaction. The structure of the synthesized compounds was confirmed by elemental analysis, FT-IR, 1H NMR, 13C NMR, 31P NMR and MS spectral data. The synthesized compounds showed significant antimicrobial and also remarkable cytotoxicity anticancer activities against breast carcinoma cell line (MCF7). The quantum chemical calculations were performed using density functional theory (DFT) to study the effect of the changes of molecular and electronic structures on the biological activity of the investigated compounds. Also, NBO and theoretical FT-IR were calculated. The experimental results were validated by molecular docking simulation of compound 3b in the active pocket of the enzyme. The important binding interactions with the key residues in the active site were revealed. A good correlation was found between the quantum chemical parameters and experimental data.
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Affiliation(s)
- Mohamed K Awad
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt.
| | - Mahmoud F Abdel-Aal
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Faten M Atlam
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Hend A Hekal
- Chemistry Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Evecen M, Tanak H, Ünver Y, Çelik F, Semiz L. Analysis on molecular, spectroscopic and electronic behavior of 4,4'-(butane-1,4-diyl)bis(1-((1-(4-chlorobenzyl)-1H-1,2,3-triazol-5-yl)methyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one): A theoretical approach. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.03.127] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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6
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Hamada NMM. Synthesis, Spectroscopic Characterization, and Time-Dependent DFT Calculations of 1-Methyl-5-phenyl-5 H-pyrido[1,2- a]quinazoline-3,6-dione and Its Starting Precursor in Different Solvents. ChemistryOpen 2018; 7:814-823. [PMID: 30338205 PMCID: PMC6182252 DOI: 10.1002/open.201800146] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Indexed: 11/10/2022] Open
Abstract
In this study, 2-mercapto-3-phenyl-2,3-dihydro-1H-quinazolin-4-one (1), which exists as a thiol and thione tautomer, was treated with acetylacetone to give the target compound, namely, 1-methyl-5-phenyl-5H-pyrido[1,2-a]quinazoline-3,6-dione (2). The spectroscopic data, including UV/Vis, IR, 1H NMR, 13C NMR, and mass data, of this compound were recorded. The molecular structures of the starting material (1) and the product (2) were optimized by using density functional theory (DFT) by employing the B3LYP exchange correlation with the 6-311G (d, p) and 6-31G++ (d, p) basis sets. The electronic spectra were determined based on time-dependent DFT calculations in three different solvents (i.e., chloroform, ethanol, and acetonitrile) starting from the same solvated run of the optimized geometry with the same two basis sets. The solvent effects were considered based on the polarizable continuum model (PCM), and the energetic behavior of the compounds and the total static dipole moment (μ) in different solvents were examined in the two basis sets; the results showed that the total energy of the compounds decreased upon increasing the polarity of the solvent. Time-dependent DFT calculations were performed to analyze the electronic transitions for various excited states that reproduced the experimental band observed in the UV/Vis spectrum. A study on the electronic properties, such as the HOMO and LUMO energies, was performed by the time-independent DFT approach. Using the gauge-independent atomic orbital method (GIAO), the 1H NMR chemical shifts were calculated and correlated with the experimental ones. The computed results showed that the introduction of different dielectric media had a slight effect on the stability and reactivity of the title compound as well as on the Milliken atomic charges and the molecular geometry. Besides, the molecular electrostatic potential of target product 2 was evaluated in different solvents.
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Affiliation(s)
- Nagwa M. M. Hamada
- Chemistry DepartmentFaculty of EducationAlexandria UniversityAlexandria21526Egypt
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Padmavathy K, Krishnan KG, Kumar CU, Sutha P, Sivaramakarthikeyan R, Ramalingan C. Synthesis, Antioxidant Evaluation, Density Functional Theory Study of Dihydropyrimidine Festooned Phenothiazines. ChemistrySelect 2018. [DOI: 10.1002/slct.201800748] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Krishnaraj Padmavathy
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
| | - Kannan Gokula Krishnan
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
| | - Chandran Udhaya Kumar
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
| | - Peramasivan Sutha
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
| | - Ramar Sivaramakarthikeyan
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
| | - Chennan Ramalingan
- Department of ChemistrySchool of Advanced Sciences (SAS)Kalasalingam Academy of Research and Education (Deemed to be University) Krishnankoil – 626 126 Tamilnadu India
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Cuenú F, Londoño-Salazar J, Torres JE, Abonia R, D'Vries RF. Synthesis, structural characterization and theoretical studies of a new Schiff base 4-(((3-(tert-Butyl)-(1-phenyl)pyrazol-5-yl) imino)methyl)phenol. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.09.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Cuenú F, Muñoz-Patiño N, Torres JE, Abonia R, Toscano RA, Cobo J. The new 3-( tert -butyl)-1-(2-nitrophenyl)-1 H -pyrazol-5-amine: Experimental and computational studies. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Sert Y, Gümüş M, Kamaci V, Gökce H, Kani İ, Koca İ. Spectroscopic investigation of 2-(4-benzoyl-1,5-diphenyl-1H-pyrazol-3-yl)-4H-naphto[2,3-d][1,3]oxazin-4-one molecule. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2017. [DOI: 10.1142/s0219633617500390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this present study, the experimental and theoretical vibrational frequencies of an important pharmacological molecule 2-(4-benzoyl-1,5-diphenyl-1[Formula: see text]-pyrazol-3-yl)-4[Formula: see text]-naphto[2,3-[Formula: see text]][1,3]oxazin-4-one have been researched. The experimental FT-IR and laser-Raman spectra of the title compound have been taken in the region (4000–400[Formula: see text]cm[Formula: see text]) and (4000–100[Formula: see text]cm[Formula: see text]), respectively. The vibrational modes and optimized structure parameters have been computed by using DFT/B3LYP methods with 6-311[Formula: see text]G(d,p) basis set. In our calculations, Gaussian 09W software program has been used. Assignments of theoretical vibrations have been obtained by potential energy distribution analysis using VEDA 4 software program. This program is important because it performs assignments with 10% precision. We have obtained a fairly good agreement between experimental and theoretically obtained results, and these results have supported the literature. Additionally, we have examined the highest occupied molecular orbital and the lowest unoccupied molecular orbital energies, the other related molecular energy values, nuclear magnetic resonance ([Formula: see text]C and 1H-proton) chemical shifts, and UV–Vis wavelengths (electronic absorption wavelengths of the title compound) by using the mentioned calculation level. The nonlinear optical properties of the title compound have also been determined by using DFT/B3LYP/6-311[Formula: see text]G(d,p) level.
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Affiliation(s)
- Yusuf Sert
- Department of Physics, Faculty of Art and Sciences, Bozok University, Yozgat, Turkey
- Sorgun Vocational School, Bozok University, Yozgat, Turkey
| | - Mehmet Gümüş
- Akdağmadeni Health College, Bozok University, Yozgat, Turkey
- Department of Chemistry, Faculty of Art and Sciences, Bozok University, Yozgat, Turkey
| | - Volkan Kamaci
- Department of Chemistry, Faculty of Art and Sciences, Bozok University, Yozgat, Turkey
| | - Halil Gökce
- Vocational School of Health Services, Giresun University, Giresun, Turkey
| | - İbrahim Kani
- Department of Chemistry, Faculty of Sciences, Anadolu University, Eskişehir, Turkey
| | - İrfan Koca
- Department of Chemistry, Faculty of Art and Sciences, Bozok University, Yozgat, Turkey
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Sogukomerogullari HG, Şen F, Dinçer M, Özdemir N, Sönmez M. Tridentate SNS pincer type ligand: Synthesis, structural and spectroscopic analysis of a novel pyridine and m-xylene compound with thioether-bridge. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dhandapani A, Manivarman S, Subashchandrabose S. Synthesis, crystal growth, structural evaluation and nonlinear optical analysis of ethyl-4-(3,4-dimethoxyphenyl)-6-methyl-2-sulfanylidene-3,4-dihydro-1H-pyrimidine-5-carboxylate. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.084] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ozdemir M, Sonmez M, Sen F, Dincer M, Ozdemir N. Synthesis of a new heterocyclic Schiff base ligand “(E)-5-benzoyl-4-phenyl-1-((pyridin-2-ylmethylene) amino) pyrimidin-2(1H)-one”: An experimental and computational modeling study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Synthesis and Crystal Structures of Two Novel O, N-Containing Spiro Compounds. CRYSTALS 2016. [DOI: 10.3390/cryst6060069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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